samples/apifest1/day2/welltestedsolution/test/org/netbeans/apifest/boolcircuit/RealTest.java
2 * The contents of this file are subject to the terms of the Common Development
3 * and Distribution License (the License). You may not use this file except in
4 * compliance with the License.
6 * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7 * or http://www.netbeans.org/cddl.txt.
9 * When distributing Covered Code, include this CDDL Header Notice in each file
10 * and include the License file at http://www.netbeans.org/cddl.txt.
11 * If applicable, add the following below the CDDL Header, with the fields
12 * enclosed by brackets [] replaced by your own identifying information:
13 * "Portions Copyrighted [year] [name of copyright owner]"
15 * The Original Software is NetBeans. The Initial Developer of the Original
16 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17 * Microsystems, Inc. All Rights Reserved.
20 package org.netbeans.apifest.boolcircuit;
22 import java.security.CodeSource;
23 import java.security.Permission;
24 import java.security.PermissionCollection;
25 import java.security.Policy;
26 import java.util.Collection;
27 import java.util.Collections;
28 import java.util.Enumeration;
29 import junit.framework.TestCase;
30 import junit.framework.*;
31 import org.netbeans.apifest.custom.Gte;
33 /** This file contains the APIFest quest for day 2. Simply, turn the
34 * boolean circuit into circuit that can compute with double values from 0 to 1.
36 * This means that where ever a boolean was used to represent input or
37 * output values, one can now use any double number from >= 0 and <= 1.
38 * Still, to support backward compatibility, the operations with booleans
39 * has to be kept available and have to work. In fact False shall be
40 * treated as 0 and True as 1.
42 * The basic elements has to be modified to work on doubles in the following
45 * <li>negation - neg(x) = 1 - x, this is correct extension as neg(false)=neg(0)=1-0=1=true
46 * <li>and - and(x,y) = x * y, again this is fine as and(true,true)=1*1=true and also
47 * and(false,true)=0*1=0=false
48 * <li>or - or(x,y) = 1 - (1 - x) * (1 - y) and this is also ok as
49 * or(false,false) = 1 - (1 - 0) * (1 - 0) = 1 - 1 = 0 = false
50 * or(true,false) = 1 - (1 - 1) * (1 - 0) = 1 - 0 * 1 = 1 = true
53 * However as the circuits with doubles are more rich than plain boolean circuits,
54 * there is additional requirement to allow any user of your API to write its
55 * own "element" type. This is all going to be exercise in the tests bellow
56 * which you are supposed to implement.
58 // BEGIN: apifest.day2.welltestedsolution.RealTest
59 public class RealTest extends TestCase {
61 // your code shall run without any permissions
64 public RealTest(String testName) {
68 protected void setUp() throws Exception {
71 protected void tearDown() throws Exception {
75 /** First of all create a circuit which will evaluate
76 * expression (X1 and X2) or not(x1). Hold the circuit
79 * Feed this circuit with x1=true, x2=false, assert result is false
81 * Feed the same circuit with x1=false, x2=true, assert result is true
83 * Feed the same circuit with x1=0.0, x2=1.0, assert result is 1.0
85 * Feed the same circuit with x1=0.5, x2=0.5, assert result is 0.625
87 * Feed the same circuit with x1=0.0, x2=2.0, make sure it throws an exception
89 public void testX1andX2orNotX1() {
90 Circuit c = Circuit.createOrCircuit(
91 Circuit.createAndCircuit(Circuit.input(0), Circuit.input(1)),
92 Circuit.createNotCircuit(Circuit.input(0))
94 assertFalse("true, false", c.evaluate(true, false));
95 assertTrue("false, true", c.evaluate(false, true));
96 assertEquals("0.0, 1.0", 1.0, c.evaluateFuzzy(0.0, 1.0), 0.0);
99 /** Ensure that one variable cannot be filled with two different values.
100 * Create a circuit for x1 and x1. Make sure that for any usage of your
101 * API that would not lead to x1 * x1 result, an exception is thrown.
102 * For example if there was a way to feed the circuit with two different
103 * values 0.3 and 0.5 an exception is thrown indicating that this is
104 * improper use of the circuit.
106 public void testImproperUseOfTheCircuit() {
109 Circuit x1 = Circuit.input(0);
110 Circuit c = Circuit.createOrCircuit(x1, x1);
111 assertTrue("x1 or x1", c.evaluate(true));
112 assertFalse("x1 or x1", c.evaluate(false));
115 fail("x1 or x1 with wrong params");
116 } catch (IllegalArgumentException iea) {
119 // the same with two instances of pin
120 c = Circuit.createOrCircuit(Circuit.input(0), Circuit.input(0));
121 assertTrue("x1 or x1", c.evaluate(true));
122 assertTrue("x1 or x1", c.evaluate(true, false));
123 assertTrue("x1 or x1", c.evaluate(true, true));
124 assertFalse("x1 or x1", c.evaluate(false));
127 fail("x1 or x1 with wrong params");
128 } catch (IllegalArgumentException iea) {
133 /** Write your own element type called "gte" that will have two inputs and one output.
134 * The output value will be 1 if x1 >= x2 and 0 otherwise.
137 * circuit for following expression: (x1 and not(x1)) gte x1
139 * Feed the circuit with 0.5 and verify the result is 0
141 * Feed the same circuit with 1 and verify the result is 0
143 * Feed the same circuit with 0 and verify the result is 1
145 public void testGreaterThanEqualElement() {
146 Circuit gte = new Gte(Circuit.createAndCircuit(
148 Circuit.createNotCircuit(Circuit.input(0))),
151 assertEquals("0.5", 0.0, gte.evaluateFuzzy(0.5), 0.0);
152 assertEquals("1.0", 0.0, gte.evaluateFuzzy(1.0), 0.0);
153 assertEquals("0.0", 1.0, gte.evaluateFuzzy(0.0), 0.0);
157 public void testSilly() {
158 // (x1 and not x2) or x3
159 Circuit c = Circuit.createOrCircuit(
160 Circuit.createAndCircuit(
162 Circuit.createNotCircuit(null)),
165 assertEquals("1 1 1", 1.0, c.evaluateFuzzy(1.0, 1.0, 1.0), 0.0);
166 assertEquals("1 1 0", 0.0, c.evaluateFuzzy(1.0, 1.0, 0.0), 0.0);
167 assertEquals("1 0 1", 1.0, c.evaluateFuzzy(1.0, 0.0, 1.0), 0.0);
168 assertEquals("1 0 0", 1.0, c.evaluateFuzzy(1.0, 0.0, 0.0), 0.0);
169 assertEquals("0 1 1", 1.0, c.evaluateFuzzy(0.0, 1.0, 1.0), 0.0);
170 assertEquals("0 1 0", 0.0, c.evaluateFuzzy(0.0, 1.0, 0.0), 0.0);
171 assertEquals("0 0 1", 1.0, c.evaluateFuzzy(0.0, 0.0, 1.0), 0.0);
172 assertEquals("0 0 0", 0.0, c.evaluateFuzzy(0.0, 0.0, 0.0), 0.0);
175 // END: apifest.day2.welltestedsolution.RealTest